Rock crystal sand rock crystal sand the formula transfer and rock crystal sand manufacturers can eliminate daubed it with lime mixed mortar, walls appear burst ash layer HOLLOWING off, blisters, cracks and other phenomena. At the same time reduce the environmental pollution caused by the lime in the transport and use of the process, reduce the mixing and masonry, plastering the labor intensity. This new type of cement fortifier operation is simple, easy to use. Use rock crystal sand poured into water, boot stirring for a minute or so, to be out of the bubble after the addition of sand and cement, and continue stirring for 2-3 minutes, the consistency reached 70-90 best condition you can use.